421036249 has 4 divisors (see below), whose sum is σ = 421092864. Its totient is φ = 420979636.

The previous prime is 421036247. The next prime is 421036261. The reversal of 421036249 is 942630124.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 421036249 - 2¹ = 421036247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421036249.

It is not an unprimeable number, because it can be changed into a prime (421036243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15097 + ... + 32710.

It is an arithmetic number, because the mean of its divisors is an integer number (105273216).

Almost surely, 2^421036249 is an apocalyptic number.

It is an amenable number.

421036249 is a deficient number, since it is larger than the sum of its proper divisors (56615).

421036249 is an equidigital number, since it uses as much as digits as its factorization.

421036249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56614.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 421036249 is about 20519.1678437504. The cubic root of 421036249 is about 749.5026326109.

The spelling of 421036249 in words is "four hundred twenty-one million, thirty-six thousand, two hundred forty-nine".